2500389280 has 48 divisors (see below), whose sum is σ = 6110876520. Its totient is φ = 965665792.

The previous prime is 2500389247. The next prime is 2500389299. The reversal of 2500389280 is 829830052.

It can be written as a sum of positive squares in 4 ways, for example, as 2486817424 + 13571856 = 49868^2 + 3684^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264799 + ... + 274078.

Almost surely, 2^2500389280 is an apocalyptic number.

2500389280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500389280 is an abundant number, since it is smaller than the sum of its proper divisors (3610487240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2500389280 is a wasteful number, since it uses less digits than its factorization.

2500389280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538921 (or 538913 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2500389280 is about 50003.8926484729. The cubic root of 2500389280 is about 1357.2792492074.

The spelling of 2500389280 in words is "two billion, five hundred million, three hundred eighty-nine thousand, two hundred eighty".